Okinawa in April: weather, what to wear and events

Okinawa weather in April

Averages for 1991–2020 at the JMA's Naha station (28 m above sea level).

High: 24.3°C (76°F)
Low: 19.1°C (66°F)
Precipitation: 161.0 mm
Wet days: 10.3 days
Sunshine: 121 hours

Highs rise 2.4°C from March and climb another 2.7°C into May.

That is 1.7°C below Naha's yearly average high of 26.0°C.

Of our 14 places with temperature records, Naha is the warmest in April, 4.2°C warmer than Kyoto.

April is Naha's 6th driest month (161.0 mm).

Of our 15 places, Naha has the 2nd highest precipitation in April: 160.8 mm less than Hakone and 9.4 mm more than Shirakawa-go.

Rain of 1 mm or more falls on 10.3 days, and 10 mm or more on 4.5 days.

Rain of 30 mm or more in one day falls on 1.7 days, and 50 mm or more on 0.7 days.

The sun is out for 40% or more of the possible hours on 11.3 days, and 4.1 days have under 0.1 hours of sunshine.

By the JMA's cloud records, 0.4 days are clear and 16.1 are overcast.

On 15 April 2027 the sun rises at 6:07 and sets at 18:53 in Naha, giving 12 hours 46 minutes of daylight (NAOJ).

Average temperature: 21.5°C (71°F)
Humidity: 75%
Days of 25°C or more: 12.2 days

Early, mid and late April

Naha in April by ten-day period: averages for 1991–2020 (JMA)
Days	High	Low	Precipitation
1–10 April	23.4°C	18.2°C	48.2 mm
11–20 April	24.2°C	19.0°C	59.5 mm
21–30 April	25.2°C	20.2°C	53.2 mm

By the last ten days of April the average high in Naha is 1.8°C higher than in the first ten.

By ten-day totals, 11–20 April is the wettest (59.5 mm) and 1–10 April the driest (48.2 mm).

What to wear in Okinawa in April

Mild: highs around 24.3°C

This is for Naha (28 m above sea level).

Long sleeves, or a T-shirt with a light jacket or cardigan.
An umbrella: rain falls on 10.3 days.

Pack

Umbrella

Our clothing rules

April records in Okinawa

The extremes the JMA has measured in April at its Naha station.

Hottest April day: 30.6°C (87°F) on 30 April 1892 (records since 1891)
Coldest April night: 8.7°C (48°F) on 13 April 1925 (records since 1891); also on 6 April 1916
Wettest April day: 351.8 mm on 11 April 1891 (records since 1891)

Holidays and crowds in April

National holidays in April 2027:

Thu 29 April — Showa Day

In April 2025, hotels and inns across Okinawa Prefecture were 60.5% full on average (7th busiest of 12 months). Foreign guests spent 780,640 nights there that month (Japan Tourism Agency). That compares with 59.6% in March and 56.2% in May.

What's on in Okinawa in April

Events in Okinawa in April: dates from each organizer's official page
Event	When	Where and what
Ryukyu Kaiensai Fireworks琉球海炎祭	Around mid-April (11 April in 2026)	Tropical Beach, Ginowan Seaside Park, Ginowan City. About 10,000 fireworks synchronized with music. Ticketed event. Gates open at 15:00 and the show starts at 19:00 (planned). It is held in rain and cancelled in strong wind or heavy rain, with no postponement day. Admission tickets do not include parking, and the organizer advises arriving around 17:00. Official page

Okinawa before and after April

Naha: March, April and May (JMA, 1991–2020)
Month	High	Low	Precipitation	Wet days
March	21.9°C (−2.4°C)	16.7°C (−2.4°C)	142.8 mm (−18.2 mm)	10.9 days (+0.6 days)
April	24.3°C	19.1°C	161.0 mm	10.3 days
May	27.0°C (+2.7°C)	22.1°C (+3.0°C)	245.3 mm (+84.3 mm)	11.4 days (+1.1 days)

Other places in April

April: Naha against five other places (JMA, 1991–2020)
Place	High	Against Naha	Wet days	Against Naha
Tokyo	19.4°C	−4.9°C	9.5 days	−0.8 days
Kyoto	20.1°C	−4.2°C	9.4 days	−0.9 days
Osaka	19.9°C	−4.4°C	9.2 days	−1.1 days
Sapporo	11.7°C	−12.6°C	9.6 days	−0.7 days
Fukuoka	19.9°C	−4.4°C	9.7 days	−0.6 days

All 15 places in April

Frequently asked questions

What is the weather like in Okinawa in April?

The average high is 24.3°C (76°F) and the average low 19.1°C (66°F). 161.0 mm of rain falls on about 10.3 days (JMA, 1991–2020).

What should I wear in Okinawa in April?

Long sleeves, or a T-shirt with a light jacket or cardigan. An umbrella: rain falls on 10.3 days.

Is Okinawa busy in April?

In April 2025, hotels and inns across Okinawa Prefecture were 60.5% full on average (7th busiest of 12 months). Foreign guests spent 780,640 nights there that month (Japan Tourism Agency).

What are the record temperatures for April in Okinawa?

The highest temperature the JMA has recorded in Naha in April is 30.6°C (87°F), on 30 April 1892. The lowest is 8.7°C (48°F), on 13 April 1925.

What events are on in Okinawa in April?

Ryukyu Kaiensai Fireworks: Around mid-April (11 April in 2026).

Related items

Sources for this page

Japan Meteorological Agency (JMA) Normals for 1991–2020: Naha (那覇), month by month (平年値年・月ごとの値)checked October 2, 2026
Japan Meteorological Agency (JMA) Normals for 1991–2020: Naha (那覇), rain days, temperature days and snow (詳細)checked October 2, 2026
Japan Meteorological Agency (JMA) Ten-day normals for 1991–2020: Naha (那覇) (平年値旬ごとの値)checked October 2, 2026
Japan Meteorological Agency (JMA) Records for April: Naha (那覇) (観測史上1〜10位の値)checked October 2, 2026
National Astronomical Observatory of Japan (NAOJ) Sunrise and sunset by prefectural capital (各地のこよみ)checked October 2, 2026
Cabinet Office National holidays (国民の祝日について)checked October 2, 2026
Japan Tourism Agency Overnight Travel Statistics Survey, 2025 final figures (宿泊旅行統計調査 2025年年の確定値)checked October 2, 2026
Ryukyu Kaiensai Executive Committee Ryukyu Kaiensai Fireworks (琉球海炎祭)checked October 2, 2026

Okinawa in April: weather, what to wear and what's on